Spinning or twisting spindle



B. R. SWEET SPINNING OR TWISTING SPINDLE Aug. 2, 1932.

Filed Feb. 8, 195 2 V vvwN? A r A TA/ INVENTOR.

Patented Aug. 2, 1932 UNITED STATES PATENT OFFICE IBERTBAM R SWEEI, OF WHI'I'IKSVILLE, MASSACHUSETTS, ASSIGNOR TO WHITIN MA- OF WHITINSVILLE, MASSACHUSETTS,

CHINE WORKS, CHUSETTS SPINNING OR TWISTINGSPINDLE This invention relates to spindles for spinning or twisting yarn for textile purposes. It is the general object of my invention to provide a spinning or twistincg spindle having an anti-frlction bearing an so constructed and arranged that important operating advantages are attained.

A further object is to provide a construction which permits the anti-friction bearing 0 to be readily removed with the spindle blade and to be easily replaced in the spindle base.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of my invention is shown in the drawing which is a sectional side elevation of a spindle embodying my improvements.

Referring to the drawing, my improved spindle comprises a base or bolster casing 10, a bolster 11, a spindle blade 12 and a driving whirl 13. The base 10 is mounted in the spindle rail R of a spinning or twisting frame and is secured therein by a binding nut 14.

The bolster 11 is made in the usual form as a sleeve loosely fitting in an elongated recess 16 in the base 10.

The bolster is axially movable in the recess 16 but is held from rotation by a key 17 seating in a slot 18. y

The spindle blade 12 has a cylindrical bearing portion 20, an enlarged upper portion 2 and a tapered lower portion 22 terminating in a conical bearing portion 23.

The whirl 13 is driven on to the enlarged upper portion 21 and is firmly secured thereto. The cylindrical bearing portion 20 rotates freely within a straight cylindrical opening 24 in the bolster 11. The lower portion of the tapered part 22 is received in a tapered recess 25 in the lower end of the bolster 11, and the conical end'bearing 23 rests upon a ball 26 mounted in a step 27 forced into an opening 28 in the lower end of the bolster 11. Upward displacement of the ball is prevented by an internal flange 29 on the bolster 11.

An anti-friction bearing B is provided be- 60 tween the spindle blade 12 and an upwardly extended sleeve 30 forming part of the base 10. This anti-friction bearing preferably comprises balls 32 rotatable between an inner ball race 33 and an outer ball race 34.

Theinner ball race 33 is forced on to the cylindrical portion 20 of the blade 12 and is positioned between collars 36 and 37, also tightly seated on the blade 12. The outer ball race 34 is a snug sliding fit in a recess or opening 40 in the sleeve or upward extension 30 of the base 10.

A CORPORATION OF HASSA The upper collar 36 is positioned between the lower end oi the enlarged blade portion 21 and the upper face of the inner ball race 33 and acts as a spacing and positioning member for the ball bearing. The collar 36 is provided with an outwardly extending cone shaped flange 42, overlying the balls 32 and the opening between the inner and outer ball races. The usual oil feed passage 44 is provided, which is closed by an oil cover 45.

It will be noted that the ball bearing in my improved spindle is-disposed in a horizontal lane which is between the upper and lower anges 46 and 47 of the whirl 13, so that the ball bearing receives the direct thrust of the driving belt. Deflection or distortion of the spindle blade is thus avoided.

My improved spindle may be easily assembled by first slipping the bolster 11 into place in the base 10, and by then inserting the spindle blade 12, the whirl 13 and the ball bear- 1 ing B as a unit into the base and bolster.

The ball bearing is so constructed that the balls and inner and outer ball races are permanently assembled. When the spindle blade is thus inserted in the base, the outer ball race 34 is slipped downward into the recess 40 of the upper sleeve-like portion 30 of the base 10. This downward movement continues until the conical lower bearing portion 23 of the blade rests on the anti-friction ball 26. The spindle is then completely assembled and ready for use.

The conical flange 42 acts to prevent oil or grease from being thrown upward from the ball bearing to a position where it might escape over the upper edge of the'sleeve 30 and then leak downward between the sleeve 30 and the whirl 13. Furthermore, the conical flange 42 prevents lint and dirt from falling, on to the ball bearing and interfering with the operation thereof.

Whenever it is desired to remove the blade 12, the blade is simply pulled upward, whereupon the outer ball race 34: will be upwardly removed from the sleeve 30, the ball bearing B remaining assembled with the spindle blade and whirl.

I thus provide a construction obtaining all of the advantages of using anti-friction bearings, but at the same time ca able of being assembled or se arated as easi y and quickly as the old style spindle having the usual plain bearings.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is 1. In a spinning or twisting machine having a supporting rame, a spinnin or tWISt ing spindle comprising a base rigi 1y mounted on said supporting frame having an integral upstanding sleeve portion, a non-rotating bolster loosely mounted within said base, a s indle blade rotatable in said bolster, a Whlll on said blade, and an anti-friction bearing comprisin a plurality of balls permanently assemb ed with inner and outer ball races, the inner ball race being permanently assembled with the spindle blade within said whirl, and the outer ball race being a snug sliding fit in the upstanding sleeve portion of the base, whereby said spindle and assembled anti-friction bearing may be removed as a unit from said base and bolster.

2. 'In a spinning or twisting machine having a supporting frame, a spinning or twistmg spindle comprising a base rigidly mounted on said su porting frame having an integral upstan ing sleeve portion, a non-rotating bolster loosely mounted within said base, a s indle blade rotatable in said bolster, a whirl on said blade, and an anti-friction hearing comprising a plurality of balls permanently assembled with inner and outer ball races, the inner ball race being permanently assembled with the spindle blade within said whirl, and the outer ball race being a snug sliding fit in the upstanding sleeve portion of the base, whereby said spindle and assembled anti-friction bearing may be removed as a unit from said base and bolster, said antifriction bearing being enclosed and protected by the whirl and being located between the planes of the upper and lower flanges of said whirl and substantially in the horizontal plane of transverse belt pull on said spindle blade.

3. A spinning or twisting spindle comprising a base having an upstanding sleeve portion, a non-rotating bolster loosely mounted within said base, a spindle blade rotatable In said bolster and having a shoulder, a whirl onsaid blade, ananti-friction bearing comprising a plurality of balls assembled with inner and outer ball races, the inner ball race being permanently assembled with the spindle lade within said whirl and the outer race being a snug sliding fit in the upstanding sleeve portion 0 the base, whereby said spindle and assembled anti-friction bearing may be removed as a unit from said base and bolster, and a spacing collar on said spindle blade lnterposed between said shoulder and the upper face of said inner ball race and determinlng the vertical location of said inner race with respect to saidspindle blade. 4. A splnnmg or twisting spindle comprismg a base having an upstanding sleeve port1on, a non-rotating bolster loosely mounted w thin said base, a spindle blade rotatable in 831d bolster and having a shoulder, a whirl onsald blade, an anti-friction bearing comprislng a plurality of balls assembled with inner and outer ball races, the inner ball race beln permanently assembled with the spindle blade within said whirl and the outer race being a snug sliding fit in the upstandmg sleeve portion of the base, whereby said spindle and assembled anti-friction bearing may be removed as a unit from said base and bolster, and a spacing collar on said spindle blade interposed between said shoulder and the upper face of said inner ball race and determlning the vertical location of said inner race w1th respect to said spindle blade, said spaclng collar having an outwardly extended comcal flange, overlying said ball bearing and preventing upward escape of oil therefrom.

In testimony whereof I have hereunto af fixed my signature.

BERTRAM R. SWEET. 

